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Finding the Fourth Proportional to 442,808.40, 663,228.45 and 442,808.40

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Solution

The fourth proportional to 442,808.40, 663,228.45 and 442,808.40 is: 663,228.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,808.40 : 663,228.45 = 442,808.40 : x
  2. Step 2: Convert to fraction form
    442,808.40/663,228.45 = 442,808.40/x
  3. Step 3: Cross multiply
    442,808.40x = 663,228.45 × 442,808.40
  4. Step 4: Simplify right side
    442,808.40x = 293,683,128,778.98
  5. Step 5: Solve for x
    x = 293,683,128,778.98/442,808.40
  6. Step 6: Final answer
    x = 663,228.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.